bugfixes. seems to work better.

bugfixes. seems to work better.
NOTES to 1.2 managers : the 1.2 seems to have problems too :
* when finishrecieve is called, the booksellerid is lost, and you arrive to the "recieve.pl" again, it's with the 1st bookseller from the DB.
* under certain circunstances, the invoice # is lost, and ALL lines from the bookseller are shown. this strange behaviour is fixed too in this commit